20993470

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{123491}}^1$

素因数の和:123515

約数の個数: 16

約数和(自身を含む): 40011408

約数和(自身を除く): 19017938

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 123491, 246982, 617455, 1234910, 2099347, 4198694, 10496735, 20993470]

約数ペア:

[(1, 20993470), (2, 10496735), (5, 4198694), (10, 2099347), (17, 1234910), (34, 617455), (85, 246982), (170, 123491)]